Electronic components mounting method

Abstract

In an electronic components mounting process fabricating a mount circuit board due to an electronic components mounting system formed of a plurality of electronic components mounting apparatuses by connecting them to each other, data of solder paste position which is printed on the circuit board is transmitted as feedforward data to an electronic components placement apparatus and a placement state inspecting apparatus. A control parameter which controls a placing position in a components placement operation due to the electronic components placement apparatus and an inspection parameter which indicates a standard position of the components in a placement state inspection are updated on the basis of the soldering position data. Therefore, it is possible to achieve a precise mounting by effectively and properly using inspection information obtained from each process.

1. An electronic components mounting method of fabricating a mount circuit board by soldering electronic components on a circuit board, the method comprising:
 a printing process of printing solder paste on electrodes which are formed on the circuit board and to which the electronic components are bonded, by the use of a printing apparatus; 
 a detection process of detecting a position of the printed solder paste and outputting the detection result as soldering position data, by the use of a first inspection apparatus; 
 a placing process of picking up the electronic components from components supply unit by the use of a mounting head and placing the electronic components on the circuit board on which the solder paste is printed; 
 a components placement position detection process of detecting a position of each of the electronic components placed on the circuit board on which the solder paste is printed and outputting the detection result as the components placement position data, by the use of a second inspection apparatus; 
 a components placement position correcting step of correcting a position of any of the electronic components departing from a standard position beyond an allowable range by transferring the departed position to the standard position in the circuit board on which the solder paste is printed; and 
 a soldering process of soldering the placed electronic components on the circuit board by heating and melting the solder paste, by using soldering means, 
 wherein an inspection parameter indicating the standard position of each of the electronic components is updated on the basis of the soldering position data by regarding the detected position of the printed solder paste as the standard position. 
 
     
     
       2. The electronic components mounting method according to  claim 1 , wherein a control parameter indicating the placing position at the time of placing the electronic components by the use of the electronic components placement apparatus and the inspection parameter are updated on the basis of the soldering position data.